The couple has not yet released their newborn’s official name. If we had to guess, it could go either way, classic or original. The cub’s older sibs are named Joe Mendes, aged 9, and Mia Threapleton, aged, 13, and are from Mom’s two previous marriages. Then, there’s Dad, whose name wasn’t always so…Rocknroll. Papa, 35, was born Ned Abel Smith and later changed that to Ned Rocknroll by deed poll. Of course, we’re champing at the bit to see what this newly arrive little man will be named.

Winslet’s new movie Labor Day costarring Josh Brolin is slated to open on January 31, with a US opening on December 27.